Device for winding armatures



Sept! 9 3. v. c. MIRONOWICZ 2,329,409

DEVICE FOR WINDING ARMATURES Filed Dec. 22, 1941 Z SheetS-Sheet 2 WM 6 MAm Pg, BY

Patented Sept. 14, 1943 I or. to .Wincharg'er Corporation, Siou .fiity, "Iowa, a corporation of Minnesotaj My invention pertains to a 'device'for windin armatures. l

An object of my'invention is to provide' -ina very simplified manner, an arrangement in combination with standard "winding chucks to simplify the winding of armatures, and to..alsoz reducethe time for winding the same. I l A further object of my invention .is to provide such an arrangement wherein .the necessary loops for attachmentto the-commutator are taken. off in a separated condition .andsuch loops provided without the necessity of forming by hand.

With these and other objects in view, mytinvention consists in thes construction, arrange ment, and combination of the various. parts of my device, whereby the objects contemplated are attained, as hereinafter": more fully set forth, pointed out in my. claims, and. illustratedcinrthe accompanying drawings-dn which:

Figure 1 is a J side 2 elevation; illustrating the entire device,

Figure 2 is an enlarged detail in elevation showing a portion of the winding device, and

Figure 3 is a plan view of Figure 2.

My invention contemplates an improvement over existing armature holding jaws or chucks to facilitate the winding operation especially with reference to the formation of the loops in the turns which are taken off for attachment to the commutator.

I have used the character I to designate a platform supporting the bracket II to which bracket are attached the members l2 and G3, the member l2 including a standard friction portion at M and. the member I3 being attached to the pulley I5. Resting on the base It] is a can I6 which receives a spool of armature wire which wire is indicated by the character I1 and which travel over the pulley l and thence under the further pulley l8, over the further pulley l9 and thence to the armature which is indicated generally by the character 20. The pulley I9 is pivotally supported at 2| to the rod 22 which is pivoted at 23 to the bracket II and attached at 24 to the rod 22 is the spring 25 which is attached at 26 to the bracket H. An electric motor 21 is adapted to drive the arrangement for winding the required number of turns within the armature slots 28 (see Figure 3) and attached to the motor shaft 29 is the supporting fixture including the ring 30 which extends integrally into arms 3| which merge with the mem- Appumim Dumber 22. 1-a4 i,-zlseriarm. tsetse 'z c im 's.

her 32 which is parallel to the ring 30, the mem-' ber 32 including a hub 33 which is threadably engaged with the shaft 29 and locked thereto.

:the same asrithe new?! -Attached to th member 32 :is a guide member =3 4 which 'slidahly receiv'esfi the I carriages 35. and 36 whichi.carriages-are thneaxiably engaged-with the screws 3-l terminating; in knurled. portions-38. the inner ends of: the skimmer belng rotatably secured in" tlie -flange -3'9: attachedtoewhich: flange 39 is the abutment member. 10 L-which. :is spring urged by means ot. the spring: 41 .-.against the armatureI.2!i.-. Pinotally attached...to theicarriage :35uat i42 isithe leng-thenedrfiattbarrfl towhichis attached the seriesoot three or'moreiverticaljretaining: pins-:44 rl'which ipins'. arerpreferablyh of increasing height .=rear.wardly.' Alsoz attached 1 to the carriage is itheehpacketlmi which. termi Lnato's 'in 'grippingcjaws fiifi lhaving. the rounded s'u-rtace athA'l and the rapper; inwardly inclined ..p0rtions'.48.' 1 Q5511; It I JAttached toithamemberiSfi is a further bracko '43 which terminates with-the:exceptionhowever that it is in an inverted position with, respect thereto. Attached to the carriage 36 is a screw 50 which is adapted to engage againstthe wire retaining clip 5 I.

Many of th features herein illustrated apply to more or less standard procedures in the art, the jaws 46 serving to grip and support the armature 20 in the desired position leaving an armature slot 28 adjacent to each jaw so that when the motor 2'! is turned in the direction of the arrow 52 the wire coils will be wound between opposite slots as shown more clearly in Figure 3, the curvature of the jaws 46 having the tendency'of causing the wire to pass into the slots 28 which slots also include the usual insulating fibres 53. The screws 31 are turned inwardly or outwardly to carry the jaws 46' against the armature and to provide adjustment as to size.

The customary practice in using such an arrangement has been for the operator to allowleads in the form of a loop and to hold such leadsmomentarily by hand, and thence to successively Wind further windings in the same slot and form other loops by hand which loops are to be attached to the commutator bars;

However, I provide in the jaws 46 an upper slot 56 and a lower slot 51 which are machined or otherwise formed, of a substantial depth beneath the outer'surface of the jaws 46. By the use of this arrangement, after each required number of turns are made by starting the motor 21 and then stopping the same, the ending of each series of turns is brought up through the upper slot 56 and thence over the lowest pin 44 as shown in Figure 3 and thence through the lower slot 51 and back upwardly through the opposed slot 28, and the ending of the next series of turns in the same slot 28, is then brought over the next or second pin etc.

The clip 5| is used to hold the end of the wire I! before the winding operation is performed. Since the curvature of the portions 48 is adapted to guide the wire downwardly through the adjacent slots 28 of the armature 20, these curved portions have a tendency of smoothly guiding the wire into the slots 56 as well as 51 V to provide a quicker operation. After the opposed pairs of slots 28 are wound as shown in' Figure 3, the jaws 46 are loosened and the armature is then turned until a further opposing pair of slots 28 are ready for the winding 'operation when the same process is again repeated.

The use of such .slots besides providing, the required separation in the loop as well as being positioned in the proper location for guidance into the same, provide in combination with the pins 44 a method of retaining the loops in a fixed separated position from the armature which eliminates the objectionable feature of the loops being pulled back into the winding again when they are formed by hand. A spring 58 is attached at 59 and 60 to retain the member 43. The same arrangement of slots on the opposite jaw-permits use thereof when the rotating portions of the device happen tofall in that particular position, so that the loops can be formed at practially any position of the arrangement; 1

I have found through the use ofthis device that the time for winding armatures is materially reduced in that the aforesaid slots receive the loop wires quickly through the guiding action of the jaws and in so doing also simplify the process.

Some changes may be made in the construction and arrangement of the parts of my invention without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modified forms of structure or use of mechanical equivalents which maybe reasonably included within their scope.

I claim as my invention:

1. In combination with a guide, clamping jaws for holding armatures in an armature winding machine, each of said jaws having curved. portions extending toward its clamping edge and having entry slots formed in the surfaces of said jaws for receiving armature end loops therein, including an upper slot angularly positioned with respect to the jaws and merging with the curved portion of the jaws to provide smooth entry of wire therein for receiving one side of said loop, and a lower angularly positioned slot for receiving the other 'side of the loop. g

2. In combination with a guide, clamping jaws for holding armatures in an armature winding machine, each of said jaws having curved portions extending toward its clamping edge and having entry slots formed in, the sur faces of said jaws for receiving armature end loops therein, including an upper slot angularly positioned with respect to the jaws and merging with the curved portion of thejaws to provide smooth entry of wire therein for receiving one side of said loop, and a lower angularly positioned slot for receiving the other side of'the loop, means "for holding said loops in separated position including a plurality of spaced pins, and a frame supporting said pins. 7

- VLADIMIR CLMIRONOWICZ. 

